Scilab function
Last update : September 1996

graph_diameter - diameter of a graph

### Calling Sequence

  `[d,p] = graph_diameter(g)`

### Parameters

- `g`: graph list
- `d`: integer
- `p`: integer row vector

### Description

`graph_diameter` computes the diameter of the graph `g` i.e. the largest shortest path between two nodes. The length of the arcs are supposed to be integer (and the default value is 1). The output is the value `d` of the length of the diameter and `p` is the corresponding path.

### Examples

    ta=[1 1 2 2 2 3 4 5 5 7 8 8 9 10 10 10 10 11 12 13 13 14 15 16 16 17 17];
    he=[2 10 3 5 7 4 2 4 6 8 6 9 7 7 11 13 15 12 13  9 14 11 16 1 17 14 15];
    g=make_graph('foo',0,17,ta,he);
    g('node_x')=[283 163 63 57 164 164 273 271 339 384 504 513 439 623 631 757 642];
    g('node_y')=[59 133 223 318 227 319 221 324 432 141 209 319 428 443 187 151 301];
    g('node_diam')=[1:(g('node_number'))]+20;
    show_graph(g);
    [d,p] = graph_diameter(g)
    show_arcs(p);

### See Also

`graph_center`,